How to measure basal temperature and make a correct schedule?

Constant measurement of basal temperature helps women to predict pregnancy, to avoid unwanted conception. Doctors on this indicator can make a conclusion about the operation of the reproductive system. Let's consider the manipulation in more detail and find out: how to measure basal temperature, what this requires and what rules exist.

What is the basal temperature?

The term "basal temperature" is used to designate a temperature index, the values ​​of which are measured in the rectum, vagina or oral cavity. The measurements are carried out at rest. The values ​​obtained make it possible to indirectly assess the state of the reproductive system and its functioning. Often with the help of these measurements, women set a favorable period for conception. This takes into account the basal temperature phases, which correspond to the periods of the menstrual cycle.

Why measure basal temperature?

Often, the definition of the basal temperature of a woman is conducted in order to establish an ovulatory process in the body. Ovulation - the exit of the matured egg into the abdominal cavity for further fertilization. Having learned when this process takes place in the body, a woman can plan a pregnancy, or on the contrary - avoid it, excluding sex during the period of ovulation.

In addition, basal temperature values ​​of girls can judge the onset of pregnancy. It is known that after successful conception, the values ​​of this parameter increase, which is noticeable from the basal temperature chart. It is built by entering the values ​​in a special diary, which are not maintained for a long time.

Basal temperature for ovulation

By increasing the values ​​of this indicator, women can judge about the release of the egg from the follicle. The basal temperature increases with ovulation. This process occurs about the middle of the cycle, 14 before the upcoming monthly. The basal temperature after ovulation for 3 more days is kept at the level of 37.1-37.3 degrees. The entire first phase, before ovulation, this parameter varies between 36.0-36.6.

In some cases, on the eve of ovulation, women can record a slight decrease in temperature, by 0.1-0.2 degrees. Gynecologists refer to this phenomenon as a "withering" of the basal temperature, which can be clearly seen from the graph. Decrease occurs, as the reaction of the body to the increase of luteinizing hormone in the blood, which provokes the release of the egg from the follicle. The phenomenon itself has a short duration, so some women may not fix it.

Basal temperature for pregnancy

Regular measurement of this indicator and keeping a schedule, helps to diagnose gestation at the very beginning. The basal temperature during pregnancy in the early stages is set at 37.0-37.3 degrees. If there is no fertilization, the woman notices a gradual decrease of this parameter 3 days after ovulation, and by the time of menstruation the basal temperature is set at 36.6-36.7. The onset of pregnancy is accompanied by an increase in the level of progesterone in the blood, which keeps the basal temperature elevated.

How to measure basal temperature?

The basal temperature should be measured in the morning. It is important to observe peace of mind - doctors recommend to perform the procedure lying in bed. To conduct measurements, the tip of the thermometer is injected into the rectum, to a depth of at least 4 cm. The procedure should last no less than 5-7 minutes. After a while, carefully remove the thermometer, fix the values. The tip is wiped with a damp cloth, dumped and placed in a storage case.

Thermometer for measuring BT

Measurement of BT gynecologists are advised to conduct one thermometer continuously. It is better to use an electronic thermometer. This device is less susceptible to external factors, does not respond to changing conditions. When using mercury, it is not permissible to take a thermometer after the tip with mercury, as this can distort the result. The very procedure of measurement lasts 7-10 minutes or until the sound signal when using an electronic thermometer.

BT measurement rules

Before measuring the basal temperature for determining the time of ovulation in the body, a woman must prepare in advance for the procedure. The thermometer should be placed in the evening on the bedside table, so as not to get up. Start the measurement on the first day of the cycle and keep them on continuously, even during periods. It is important to observe the following rules:

  1. Do not take measurements when taking hormonal contraceptives , sedatives.
  2. The procedure should be performed every morning, without getting up right after waking up without talking.
  3. Manipulation is carried out at the same time.
  4. To obtain an accurate indicator, before the basal temperature is measured, it is necessary that the organism is at least 3 hours at rest (sleep).

What should be the basal temperature?

Having understood how to correctly measure the basal temperature, it is necessary to name its normal values. Speaking about such an indicator as the basal temperature, the norm of which depends on the phase of the cycle, it is worth noting that the exact values ​​can be obtained only if the conditions indicated above are met. Change of the parameter during the menstrual cycle occurs as follows:

Basal temperature chart with examples and decoding

For clarity, consider a normal graph. It clearly shows the gradual decrease in the index from the moment of menstruation to ovulation, at which the rise occurs. In the absence of fertilization, the destructive processes in the egg begin, and its death occurs. This is accompanied by a decrease in the indicator, which is noticeable on the graph. Basal temperature the day before the monthly remains elevated.

The basal temperature chart for pregnancy is characterized by the presence of increased values ​​of this indicator. Normally at this time it is set at 37.1-37.4 degrees. It is worth noting that the basal temperature during pregnancy, before the delay still holds above 37. This is due to the increase in the hormone of progesterone. A decrease in the values ​​during the gestation process may indicate a decrease in its concentration, which is why there is a risk of abortion. Basal temperature 37 is a borderline variant of the norm.